Question

This operation relates the external protocols in the numerator and denominator of the Crooks relation. In stochastic thermodynamics, the entropy production is proportional to the log of the following: the probability of a trajectory, over the probability of the trajectory under this operation. In quantum mechanics, this operation is an anti-unitary operator that [emphasize] commutes with the Hamiltonian. Spin-1/2 systems that are invariant under this (-5[1])operation satisfy (*) Kramers’s (-5[1])theorem. Magnetic fields break symmetry under this operation, (-5[1])which is unified (10[1])with symmetry under charge conjugation (-5[2])and parity (10[1])inversion. (10[2])Loschmidt’s (10[1])paradox asks how it is possible for Newton’s laws, which are invariant under this operation, to give rise to a quantity (-5[1])like entropy that only increases. For 10 points, name this operation that is analogized to playing a movie backward. (10[1])■END■ (10[5]0[10])

ANSWER: time-reversal [or time-reversal symmetry; or time inversion symmetry; accept answers indicating that time is reversed or “t becomes negative t;” prompt on T-symmetry or time-symmetry]
<VD, Physics>
= Average correct buzz position

Buzzes

PlayerTeamOpponentBuzz PositionValue
Linus LuuCambridge ABristol64-5
Leo LawFarrellmagnetismZen and the Art of Buzzing67-5
Max NieburJohns HopkinsMaryland B75-5
Rachel BenthamCambridge BDurham7810
Jaime Salamanca CamachoImperial BBirmingham83-5
Calvin BostlemanOhio State A Michigan A 83-5
Chinmay MurthyTexas ATAMU8510
Nilai SardaImperial AOxford8610
Coby TranGanon Evans Fan ClubMSU A and Friend8610
Isaac MammelMaryland AGeorge Washington B8710
Aditya SharmaDukeNorth Carolina B108-5
Stefan Stealey-EuchnerArizona StateBoston College12710
Benjamin McAvoy-BickfordNorth Carolina BDuke12810
Jeffery AustinNorth Carolina ASouth Carolina B1280
Pranav KalagaSouth Carolina BNorth Carolina A1280
James ByrneBristolCambridge A1280
Faiz AhmedBirminghamImperial B1280
Dillon PatelWarwickEdinburgh12810
Emily BussaMaryland BJohns Hopkins1280
Dennis YangMichigan B Kenyon B 12810
Yashwanth BajjiMichigan A Ohio State A 12810
OwenKenyon AOhio State B1280
MatthewOhio State BKenyon A1280
Anh Khoa TranZen and the Art of BuzzingFarrellmagnetism1280
Viraj NegandhiTexas BTexas C1280
Ketan Pamurthytag magnet: taylor's versionHCC12810
Kion YouTexas CTexas B1280